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Finding the Fourth Proportional to 7,325.92, 10,991.28 and 2,941.12

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Solution

The fourth proportional to 7,325.92, 10,991.28 and 2,941.12 is: 4,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.92 : 10,991.28 = 2,941.12 : x
  2. Step 2: Convert to fraction form
    7,325.92/10,991.28 = 2,941.12/x
  3. Step 3: Cross multiply
    7,325.92x = 10,991.28 × 2,941.12
  4. Step 4: Simplify right side
    7,325.92x = 32,326,673.43
  5. Step 5: Solve for x
    x = 32,326,673.43/7,325.92
  6. Step 6: Final answer
    x = 4,412.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.